1
what is the main function of the muscles
movement, heat
The muscle used for chewing
masseter
moves away from midline
abductor
muscle shrinking due to lack of use
atrophy
what does vastus mean?
Huge
what gives muscles their color
myoglobin
name the largest muscle in the body
gluteus maximus
Smooth contractions to move muscles are
tetanus
the basic functional unit of a muscle fiber
sarcomere
arrector pili muscle control?
hair folicules, goose bumps
the protein primarily responsible for muscle contraction by pulling actin
myosin
group of muscles that lines the organs and aides in digestion and breathing
smooth muscles
what is the strongest muscle based on force
masseter; jaw muscle
what group of muscles have actin and myosin in them
skeletal muscles
the energy molecule used during muscle contraction
ATP
the structure that stores calcium ions for muscle contraction
sarcoplasmic reticulum
Which muscle has fibres that lie across the region
transverse abdominis
What is the name of the sheath that covers muscle?
epimysium
which muscle has striations but is involuntary
cardiac muscle
a muscle name meaning "circular"
orbicularis
true or false : skeletal muscles are under voluntary control
true
what is the difference between abduction and adduction
abduction is to move away from the midline and adduction is to move toward midline
opposing muscle pairs are called what
Antagonistic muscles
the theory that explains how actin and myosin interact during contraction
the sliding filament theory
give names of 3 fibrous coverings
fasicia, superficial fasicia, deep fasicia, tendon sheath, epiysium, perinysium, endomysium